Google's Spam policies for Google web search were last updated on August 28, 2026, according to the date shown on the page (Google Search Central). Three definitions in that document bear directly on HVAC websites: doorway abuse, scaled content abuse and link spam. This report summarises what each says and, in a separate labelled section, how we apply them when building contractor sites.
Doorway abuse and the city page
The answer first: Google does not ban city pages; it bans thin pages that exist to catch a search and pass the visitor along.
Google describes doorway abuse as sites or pages created to rank for specific, similar searches that lead visitors to intermediate pages less useful than the final destination. One of its examples is many pages or domains aimed at specific regions or cities that all funnel to one page.
Our analysis: an HVAC site with 40 pages titled "Furnace Repair in [Town]", identical except for the town name, matches that description closely. A page about heat pump installs in one municipality that explains local housing types, the provincial rebate administrator, typical travel time and real job photos does not. The test we use is simple: would a homeowner in that town learn something on this page that the main service page does not tell them?
Scaled content abuse and mass-produced blogs
Google describes scaled content abuse as producing many pages mainly to manipulate rankings, with content that adds little value. Its examples include using generative AI tools to mass-produce pages, scraping feeds or search results, stitching together content from other pages, and spreading content across several sites to hide the scale.
Our analysis: volume is not the problem; value is. Our own case studies include large content programs, such as HeatLand, which published 850+ SEO articles and saw a 300% lead increase in 6 months. What makes a large program defensible is that each article answers a distinct question with specific detail. A blog that rewrites the same "signs your furnace needs replacing" article 30 ways does not meet that bar.
Link spam and paid placements
Google lists buying or selling links to pass ranking credit, excessive link exchanges, automated link creation, low-quality directory links and widely distributed footer links as examples of link spam. It also says paid links are acceptable when marked with rel="sponsored" or rel="nofollow".
Our analysis: HVAC owners are offered backlink bundles and directory packages constantly. Ask two questions before paying: is the link tagged as sponsored, and would a real homeowner ever use that directory? If both answers are no, skip it. Supplier listings, local association memberships and genuine local press are better sources of links.
Other definitions worth knowing
The policy page also covers several practices HVAC sites occasionally stumble into.
| Policy | Google's concern | HVAC risk we see |
|---|---|---|
| Expired domain abuse | Buying an expired domain to reuse its ranking signals for low-value content | Buying an old competitor's domain and filling it with thin pages |
| Site reputation abuse | Third-party pages hosted mainly to borrow the host's ranking signals | Paying to publish on unrelated high-authority sites |
| Sneaky redirects | Showing users and search engines different content | Mobile visitors redirected to a lead-seller page |
A five-question test for every page
Before publishing any page on an HVAC site, we answer these. Any "no" means the page is rewritten or not published.
- Does this page answer a question a real customer has asked?
- Does it contain at least one fact or detail found on no other page of the site?
- Would the page still be useful if it ranked for nothing?
- Are all links on it either editorial or properly tagged?
- Is it written for one audience, in one place, about one service?
Our content and SEO service applies this test, and our Google Business Profile report covers the matching rules for profiles.
Limits of this reading
This is our summary of Google's published policies. It is not an official interpretation, and Google's enforcement can lag or change.
HVAC.Report is a marketing analysis service, not a contractor. If a previous agency built doorway pages or bought links for your site, call, text or email and we will review it with you. See our services for how we would rebuild it.
Frequently asked questions
Are city or service-area pages against Google's rules?
Not by themselves. Google's doorway definition targets pages made for similar searches that funnel visitors to one destination and are less useful than it. A city page with real local detail, pricing context and answers is a different thing.
Can I use AI to write my HVAC website?
The spam policies name using generative AI to mass-produce pages with little value as an example of scaled content abuse. The issue is volume without value, not the tool. Every page should be reviewed and should add something a homeowner can use.
Is buying a directory or sponsored link a problem?
Google lists buying links to pass ranking credit, and low-quality directory links, as link spam. Paid links are acceptable when marked with rel=sponsored or rel=nofollow, so ask how any paid placement is tagged.
What happens if a site breaks these policies?
The policy page refers to manual actions as one consequence, and violating pages can lose visibility in results. Recovery starts with fixing or removing the pages concerned.